15120223553 has 2 divisors, whose sum is σ = 15120223554. Its totient is φ = 15120223552.

The previous prime is 15120223471. The next prime is 15120223637. The reversal of 15120223553 is 35532202151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13346718784 + 1773504769 = 115528^2 + 42113^2 .

It is a cyclic number.

It is not a de Polignac number, because 15120223553 - 2²⁶ = 15053114689 is a prime.

It is not a weakly prime, because it can be changed into another prime (15120220553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7560111776 + 7560111777.

It is an arithmetic number, because the mean of its divisors is an integer number (7560111777).

Almost surely, 2^15120223553 is an apocalyptic number.

It is an amenable number.

15120223553 is a deficient number, since it is larger than the sum of its proper divisors (1).

15120223553 is an equidigital number, since it uses as much as digits as its factorization.

15120223553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 15120223553 in words is "fifteen billion, one hundred twenty million, two hundred twenty-three thousand, five hundred fifty-three".